It is a fact that the force that is encouraging and moving the steering wheel of our life and by which the world is racing is actually belief of profit and desire to make secure future.
This belief of profit and secure future actually drives a farmer out of his bed towards his field in bitter cold and he reaches the field even before sunrise. And he remains in the field even in scorching sun perspirating continuously.
The same belief compels a business man out of home and doing travels leaving luxury of home. The same make for a soldier, death as easy and life as difficult. He leaves his beloved son at home and go out in the battle field.These are due to certainty of benefit and expectation of a secure future.
But above all the above mentioned examples one more belief is there that is most certain and most secure and most result oriented. That is those benefits that the messenger of Allah used to convey for human being. The message given by Wahee (Divine revelation) in the books of Allah and prophet words in Hadith has revealed these most truthful news and confirmed benefits.
That we can name as Reward in life after death and pleasure of Allah.
This is called in Hadith as Eemaan and Ihtisab and this is the most vital deriving force for a muslim to strive and do good for reward in Akhirah
Maulana Ilyas used to say that knowledge of Fazail virtues take precedence over the knowledge of Masail (jurisprudence). The virtues gives the belief on the reward in the life after death.And this is the state of eeman to belief on unseen return blessing and reward. And a person get ready to do Aamaal e Slaiha. The requirement of knowing the jurisprudence detail will be only if a person is ready for doing that action. (If a person is not ready for offering Salat for him what is the use of detail of Faraiz and Sunnan of Salat)